ENRICHMENT OF ANAEROBIC BIO-DECHLORINATION ACTIVITY OF CHLORINATED AROMATICS FROM PADDY SOIL FOR BIOREMEDIATION TECHNOLOGY

摘要：

Anaerobic microbial dechlorination activity was successfully enriched from a non-contaminated paddy field soils by using lactate or related acids as electron donors under anaerobic conditions. Pentachlorophenol was completely dechlorinated into phenol. Polychlorinated biphenyl mixture (Kanechlor 300/400) was also dechlorinated substantially, probably to mostly dichloro- or monochlorobiphenyls. 4,5,6,7-tetrachlorophthalide (fthalide) was dechlorinated into 4-chlorophthalide. The enriched dechlorinating anaerobic microbial consortia contained large proportions of Firmicutes, which was documented by PCR-DGGE analysis targeting 16S-rRNA genes. The enriched microbial consortia dechlorinating pentachlorophenol or fthalide were successfully utilized as the dechlorinating permeable barriers in model experiments using anaerobic flow column system.

作者: Katayama A Miyamoto T Inoue Y Yoshida N Baba D Li Z Yang S Shibata A Mizoguchi T Taira A Shimizu Y

作者单位: EcoTopia Science Institute and Graduate School of Engineering,Nagoya University,Chikusa,Nagoya 464-8603 Japan

会议类型: 国际会议

会议名称: 29th International Symposium on Halogenated Persistent Organic Pollutants(第29届国际持久性有机污染物研讨会)(2009国际二噁英大会)

会议地点: 北京

会议语种:英文

页码: 1-4

在线出版日期: 2009-08-24（万方平台首次上网日期，不代表论文的发表时间）